Home / 55,148.04-76,100.45-31,278.56

Finding the Fourth Proportional to 55,148.04, 76,100.45 and 31,278.56

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Solution

The fourth proportional to 55,148.04, 76,100.45 and 31,278.56 is: 43,162.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,148.04 : 76,100.45 = 31,278.56 : x
  2. Step 2: Convert to fraction form
    55,148.04/76,100.45 = 31,278.56/x
  3. Step 3: Cross multiply
    55,148.04x = 76,100.45 × 31,278.56
  4. Step 4: Simplify right side
    55,148.04x = 2,380,311,954.46
  5. Step 5: Solve for x
    x = 2,380,311,954.46/55,148.04
  6. Step 6: Final answer
    x = 43,162.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.